The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 2000
Filed:
Apr. 01, 1999
Kazuyuki Koike, Shizuoka-ken, JP;
Hidetoshi Kobayashi, Kanagawa, JP;
Yasuhiro Ogata, Shizuoka-ken, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
Disclosed is a heat-sensitive recording material comprising a support comprised of a substrate and a thermoplastic resin layer formed thereon, and a heat-sensitive recording layer disposed on the support and containing a diazonium salt compound capable of being decomposed by ultraviolet light, wherein the thermoplastic resin layer is formed by melt extrusion and wherein the thermoplastic resin layer contains a fluorescent brightening agent and a white pigment. In the heat-sensitive recording material, the fluorescent brightening agent is preferably a compound represented by the following structural formula (I): Structural Formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each represent a hydrogen atom, or a substituent group or a substituent atom.